Heh. It is fun to tweak and play with this code:
Code: Select all
InitSprite()
InitKeyboard()
OpenFile(0,"scncmds.txt")
ScreenW = 640
ScreenH = 480
Deb = 16
CloseFile(0)
Global ShakeX.l, ShakeY.l, PowerX.l, PowerY.l
Global PlayerX, PlayerY, PlayerSpeedY.l, PlayerSpeedX.l
PlayerX = (ScreenW/2)-5
PlayerY = 15
Procedure ShakeScreen(PowerX2,PowerY2)
PowerX = PowerX2
PowerY = PowerY2
EndProcedure
Procedure ScreenReset()
ShakeX = 0
ShakeY = 0
EndProcedure
Procedure UpdateShake()
If PowerX <> 0
If PowerY <> 0
ShakeX = Random((PowerX*2))-PowerX
ShakeY = Random((PowerY*2))-PowerY
EndIf
EndIf
If PowerX > 0
PowerX - 1
EndIf
If PowerY > 0
PowerY - 1
EndIf
EndProcedure
Structure dot
X.l
Y.l
XS.l
YS.l
EndStructure
Global NewList dot.dot()
OpenScreen(640,480,Deb,"Screen Boom")
ClearScreen(#Black)
StartDrawing(ScreenOutput())
Box(0,0,100,100,RGB(150,255,0))
StopDrawing()
GrabSprite(0,0,0,10,10)
GrabSprite(1,0,0,100,100)
Procedure UpdatePlayer()
ExamineKeyboard()
PlayerSpeedY = 0
PlayerSpeedX = 0
If KeyboardPushed(#PB_Key_Up)
PlayerSpeedY = -3
EndIf
If KeyboardPushed(#PB_Key_Down)
PlayerSpeedY = 3
EndIf
If KeyboardPushed(#PB_Key_Left)
PlayerSpeedX = -3
EndIf
If KeyboardPushed(#PB_Key_Right)
PlayerSpeedX = 3
EndIf
PlayerY + PlayerSpeedY
PlayerX + PlayerSpeedX
EndProcedure
Procedure AddDot(X,Y)
AddElement(Dot())
Dot()\X = X
Dot()\Y = Y
Dot()\XS = 0
Dot()\YS = 0
EndProcedure
Procedure UpdateDots()
If ListSize(Dot()) > 0
ResetList(Dot())
While NextElement(Dot())
;StartDrawing(ScreenOutput())
; Box(Dot()\X,Dot()\Y,10,10,RGB(255,255,255))
;StopDrawing()
DisplaySprite(0,Dot()\X,Dot()\Y)
Dot()\X + Dot()\XS
Dot()\Y + dot()\YS
If SpriteCollision(0,Dot()\X,Dot()\Y,1,PlayerX,PlayerY)
ShakeScreen(10,10)
If PlayerSpeedY < 0
Dot()\YS = -3
Dot()\XS = Random(2)-1
EndIf
If PlayerSpeedY > 0
Dot()\YS = 3
Dot()\XS = Random(2)-1
EndIf
If PlayerSpeedX < 0
Dot()\XS = -3
Dot()\YS = Random(2)-1
EndIf
If PlayerSpeedX > 0
Dot()\XS = 3
Dot()\YS = Random(2)-1
EndIf
If PlayerSpeedX = 0 And PlayerSpeedY = 0
If Dot()\Xs > 0
Dot()\Xs = -(Dot()\Xs )
EndIf
If Dot()\Xs < 0
Dot()\Xs = -(Dot()\Xs )
EndIf
If Dot()\Ys > 0
Dot()\Ys = -(Dot()\Ys )
EndIf
If Dot()\Ys < 0
Dot()\Ys = -(Dot()\Ys )
EndIf
EndIf
EndIf
If Dot()\X > 639
Dot()\XS = -(Dot()\XS)
Dot()\YS + Random(2)-1
EndIf
If Dot()\X < 1
Dot()\XS = -(Dot()\XS)
Dot()\YS + Random(2)-1
EndIf
If Dot()\Y < 1
Dot()\YS = -(Dot()\YS)
Dot()\XS + Random(2)-1
EndIf
If Dot()\Y > 479
Dot()\YS = -(Dot()\YS)
Dot()\XS + Random(2)-1
EndIf
Wend
EndIf
EndProcedure
Procedure DrawContent()
ClearScreen(#Black)
UpdateDots()
DisplaySprite(1,PlayerX+ShakeX,PlayerY+shakeY)
FlipBuffers()
EndProcedure
For X = 1 To 2
For Y = 1 To 2
AddDot(X+100,Y+100)
Next Y
Next X
Repeat
ScreenReset()
UpdateShake()
UpdatePlayer()
DrawContent()
ExamineKeyboard()
If KeyboardPushed(#PB_Key_Escape)
End
EndIf
If KeyboardReleased(#PB_Key_Space)
ShakeScreen(50,50)
EndIf
ForEver